<!doctype html>
<html>
	<head>
		<title>Draggable select multiple</title>
		<style type="text/css">
select { border: 1px solid orange; border-top-width: 20px; }
		</style>
		<script type="text/javascript">
window.onload = function () {
	document.getElementsByTagName('select')[0].ondragstart = function (e) {
		e.dataTransfer.effectAllowed = 'copy';
    e.dataTransfer.setData('Text', 'dummy text');
	};
};
		</script>
	</head>
	<body>

		<p>Press your mouse button down on the orange block and drag downwards. It should open and select items in the dropdown, and should <strong>not</strong> drag the block or text.</p>
		<div>
			<select multiple size="3" draggable="true">
				<option>Option 1</option>
				<option>Option 2</option>
				<option>Option 3</option>
			</select>
		</div>

	</body>
</html>